220k views
4 votes
Which expression is equal to 5(2x^2-1)+3(7x^2+1)

User Ziik
by
5.0k points

1 Answer

5 votes

Answer:

31x² - 2

Explanation:

5(2x²-1)+3(7x²+1) = 5*2x² - 5*1 + 3*7x² + 3 = 10x² - 5 + 21x² + 3 = 31x² - 2

User LU RD
by
4.7k points